S602 Piezo Dynamic Megaphone; with 3 Modes
TALK, SIREN AND WHISTLE. UP TO 1760 YARDS SOUND COVERAGE.
Lightweight, energy efficient and ultra-Loud, Piezo Dynamic Technology is a revolutionary SOLID STATE CIRCUIT THAT provides SUPERIOR EFFICIENCY with less weight. Piezo Dynamic Technology utilizes full-sized diaphragms and ceramic wafers to create the full-frequency response and loudness of voice coil speakers, without the use of heavy, cumbersome magnets as in conventional megaphones, significantly